Improvement in pumps



@anni (twine.

ANDREW J. PRITCHARD, OF LIVERPOOL, OHIO.

Letters Patent No. 90,576, dated llay 25, 1869.

IMPROVEMENT IN PUMPS.

The Schedule referred to in these Letter-B Patent and making part of the same.

To all whom 'it may concern Be it known that I, ANDREW J. PmTcHARD, of Liverpool, in the county of Medina, and State of Ohio, have invented certain new and useful Improvements in Pump-Valves; and I do hereby declare that the following is a full and complete description of the same, reference being had to the accompanying drawings, making part of this specification, in which- Figure 1 is a front view of the valve and seat.

Figure 2 is a vertical transverse section.

Like letters of reference refer to like parts in the different views.

This invention has for its object the construction of a pump-valve, seat, and rod, of one entire piece, at the same time preserving the capacity ofthe valve by giving to it an inclined instead of a horizontal position, hereinafter, more fully described.

In the drawing- Fig. 1, Arepresents the plunger, to which the valve B is attached.

C is the packing, and

D, the' throat, or water-channel.

The usual way of constructing the plunger and valve, for this class of pumps, is by making the valveseat separately from the rod, it being a matter of uecessity, in consequence of the horizontal position of the valve, which occupies so much of the diameter of the seat, that but a small margin is left to form the shell, to which-a bail is attached for connecting the rod whereby the plunger is operated.

Said bail is usually made of metal, attached to and reaching over from .one side of the plunger to the other, across the valve, and to which the rod is fixed. The objection to this manner of connecting the rod to the seat, is that it is too expensive for this class of pumps; and, furthermore, in consequence of the thinness of the shell of the plunger, and necessary lightness of the bail,` it is very liable to get out of order, byA breaking looseA from the plunger, or from the rod; also, for cheapness, the bail is made of iron, which soon rusts, and thereby goes quickly to ruin.

To avoid these objections, I make the plunger and rod of one piece, by pinning at the end of the rod an enlargement or piece for the seat, and a large section above it, as shown in the drawings, which represent them enlarged and broken from the rod.

In the side of this enlargement or head is eut a wide and deep angularI notch, E. It will be observed that the depth of the angle is about two-thirds the diameter of the head, leaving, at the apex, a neck, F, connecting the upper and lower parts of the head to each other, the lower part being the Valve-seat 0r plunger, and the upper, the rod, or it may forma socket, into which the rod may be inserted and secured.

It will be seen that the valve occupies, and is secured to the lower side of the angle of the notch, and therefore is inclined upward instead of being horizontal. By the inclined position of the valve, I am enabled to retain the full capacity of channel D, which could not be, if" the valve were placedl horizontally, without connecting the valve'and plunger to the rod, by the use of a bail, which I have dispensed with, by placing the valve in the inclined upward position.

In this way of constructing the plunger' and securing the valve, the expense of the pump is very much reduced, as no iron-work for a bail is required; also, considerable less time is consumed in making the plunger. All of it being of wood, it will not rust; hence, it is more durable,

What I claim as my invention, and desire to secure by Letters Patent, is-

The herein-described pump-plunger, when con-A structed with a notch, E, wherein the valve is inclined, substantially as and for the `purpose specified. Witnesses:Y ANDREW J. PRITOHARD.

J. H. Brummen, FRANK S. ALBEN. 

